CVE-2025-41729Network attack vector

Service interruption via malformed Modbus read command

Published Nov 24, 2025 · Updated Nov 24, 2025

Improper input validation in Janitza UMG 96-PA and UMG 96-PA-MID+ before 3.54 allows remote attackers to interrupt device service. The Modbus interface improperly validates the input type of a specially crafted read command, causing request handling and measurement functions to stop. No authentication or user action is required; successful exploitation halts responses and energy measurement until the device restarts.

CVSS severity7.5
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Janitza UMG 96-PA and UMG 96-PA-MID+ before 3.54 allows remote attackers to interrupt device service. The Modbus interface improperly validates the input type of a specially crafted read command, causing request handling and measurement functions to stop. No authentication or user action is required; successful exploitation halts responses and energy measurement until the device restarts.

The record

CVE
CVE-2025-41729
Published
Nov 24, 2025
Updated
Nov 24, 2025
Vendor
Janitza
Product
UMG 96-PA-MID+
Classifications
CWE-1287, T0814
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.0.0 <3.54

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Janitza · UMG 96-PA-MID+version=0.0.0 <3.54
Janitza · UMG 96-PAversion=0.0.0 <3.54

Published CVSS scores

7.5CERT@VDECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1287Improper Validation of Specified Type of Input
T0814Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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